My mom has an issue with her scar tissue growing back after her surgeries (mostly for tumors) to the point she lost function in her arm and is unable to lift it above her neck anymore. With that being said, I had knee arthroscopy the end of June 2012 to cut cartilage otu that had been tore down to the bone and they did microfracture to allow it to regrow. I was not able to walk on it for 6 weeks and then after I was allowed to, I was having issues and my main one being the fact I was only able to get to 96* flexion. It felt tight  like my knee was going to explode and was painful (Expected since I haven't been able to do much movement since April due to the injury) All of a sudden I felt this popping sensation below the knee cap where it was catching on something and popping every step I took. then I started to lose range of motion and swelling was up. He agreed to do a MUA (manipulation) and lysis of adhesions (remove scar tissue). When I was put under, he said with one hand above and one hand below my knee cap pushing down as hard as he could, he was unable to get my knee to flatten and decided to scope it. Once he did, the amount of scar tissue he found was incredible! ALSO he told me that the place where he did hte microfractures had grown back too much and he needed to shave it so it wouldnt cause me issues later. He cleaned it out but now I am 2.5 weeks post op and am feeling that same popping sensation coming back and the feel of the incision area (same place he cut the 1st and 2nd surgery) is very thick and pokes out when I bend it certain ways. I am having issues getting it to bend past 86* even with use of a cpm machine, that was the highest I could get it to go! Anymore than that and I am in tears because it feels like my knee is going to burst and something is just preventing it from moving back any further. The PT i have said that my knee cap has no play and wants me to rub my incisions with Vitamin E oil and move my knee cap around daily.

Now, with all that being said, I heard Arthrofibrosis is (or can be) genetic......is that true?  I am wondering if the feeling of the knee cap getting caught on something and popping past it is because of more scar tissue growing? What are some signs / symptoms of AF? Should I just continue with therapy and wait it out or see if the doctor can do another manipulation to break the scar tissue up without scoping it again? I'm at such a loss as to what I need to do. I have been having knee issues since late April and now it is October and I am going nuts. 2 surgeries, months worth of PT between pre-op and post-2ops. ::Sigh:: And I don't want the doctor thinking I am flaking on the CPM but with 4 children, I can only be on a few hours tops out of the day. Thanks for any and all info!!!